Smoothie calorie calculator

Quick answer. Our example green juice (300 g cucumber, 150 g celery, 60 g kale, 150 g apple, 58 g lemon, 10 g ginger root) comes to about 190 kcal and 25 g of sugars. Build your own below; values are USDA FoodData Central estimates.
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Ingredients

Per serving

190 kcal for the example green juice (juice mode).

Estimate from USDA FoodData Central values for the whole produce, before juicing. Juice mode shows no fiber number because we have no sourced figure for how much a juicer removes.

Per servingAmount
Calories190 kcal
Sugars25 g
Fibermostly removed in juice
Vitamin K330 mcg
Potassium1322 mg

Worked example: same produce, two ways

Calculated with the same function as the tool above. Per serving, one serving.

RecipeCaloriesSugarsFiberVitamin K
Green juice: 300 g cucumber, 150 g celery, 60 g kale, 150 g apple, 58 g lemon, 10 g ginger root190 kcal25 gmostly removed330 mcg
Green smoothie: 60 g spinach, 118 g banana, 165 g pineapple, 240 g coconut water240 kcal40 g7 g291 mcg

What the flags mean

The calculator adds a note when a recipe has a lot of vitamin K (20% of the 120 mcg Daily Value or more from the amounts you entered, the US labelling threshold for "high"), when it has spinach, beet greens or chard (high in oxalate), and when it has grapefruit. These are prompts to read the notes, not advice for your situation.

Vitamin K. Kale, spinach and other greens are high in vitamin K. People on warfarin should keep intake steady and talk to their doctor before starting daily green juice. Source: NIH Office of Dietary Supplements, Vitamin K fact sheet.
Oxalates. Spinach, beet greens and chard are high in oxalate. People with a history of kidney stones should ask their doctor. Source: National Kidney Foundation, kidney stones.
Sugar. Juice keeps the sugar and loses most of the fiber. People managing blood sugar should favour vegetable-heavy, low-fruit recipes and ask their doctor. Source: CDC, Rethink Your Drink.

The grapefruit note appears only when grapefruit is in your list.

Values per 100 g of each ingredient

The table the calculator reads. Calories in kcal, sugars and fiber in grams, vitamin K in micrograms, potassium in milligrams.

IngredientkcalSugars gFiber gVit. K mcgPotassium mg
Kale3514.1390348
Spinach2502.2483558
Romaine lettuce151.22.1103247
Green leaf lettuce150.81.3126194
Arugula252.11.6109369
Swiss chard201.11.6830379
Collard greens3004437213
Beet greens200.53.7400762
Dandelion greens450.73.5778397
Watercress1000.5250330
Green cabbage253.22.576170
Broccoli351.72.6102316
Parsley350.93.31640554
Cilantro (coriander leaves)250.92.8310521
Mint (spearmint)45not listed7not listed458
Ginger root801.720415
Cucumber (with peel)151.70.516147
Celery151.31.629260
Carrot404.72.813320
Beet4572.80325
Green bell pepper202.41.77175
Fennel bulb303.93.163414
Tomato202.61.28237
Apple (with skin)50102.42107
Pear60103.14116
Pineapple50101.41109
Banana90122.61358
Blueberries60102.41977
Strawberries304.922153
Raspberries504.478151
Watermelon30600112
Cantaloupe3580.93267
Mango60141.64168
Avocado1600.7721485
Kiwifruit (green)609340312
Grapes (red or green)70150.915191
Peach4081.53190
Cranberries454.33.6580
Lemon (whole, without peel)302.52.80138
Lime (whole)301.72.81102
Orange4592.40181
Grapefruit (pink and red)3071.10139
Coconut water203.900165
Almond milk, unsweetened150.80067
Plain whole-milk yogurt604.700155
Honey300820052

USDA FoodData Central, SR Legacy (April 2018 release), checked 2026-11-14. Wheatgrass has no SR Legacy entry and is not included.

Frequently asked questions

How many calories are in a green juice?

It depends on the recipe. Our example (300 g cucumber, 150 g celery, 60 g kale, 150 g apple, 58 g lemon, 10 g ginger root) is about 190 kcal, and most of it comes from the apple. Swap fruit for cucumber or celery and the number drops; the calculator shows by how much.

Why is juice mode different from smoothie mode?

A smoothie keeps the whole produce, fiber included. A juicer removes most of the fiber, but we have no sourced figure for how much, so juice mode shows no fiber number. Calories and sugars stay the whole-produce values, which makes them an estimate.

Where do the values come from?

USDA FoodData Central, SR Legacy, per 100 g of each raw ingredient. Amounts you pick in cups or pieces use the gram weights from the same database. Values the database does not list are left out, not counted as zero.

General information, not medical or nutrition advice. See the recipe and nutrition disclaimer.

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